Heavy machinery destroys standard warehouse floors. For serious durability, PU...

https://wiki-wire.win/index.php/Can_PU_Concrete_Be_Installed_Over_Green_Concrete%3F_The_Reality_of_Moisture_Tolerance

Heavy machinery destroys standard warehouse floors. For serious durability, PU concrete is my top recommendation. Expect to pay £50-£90 per sqm, but it is worth it for the superior impact resistance